Liquid pump



FIG. 1 is a perspective view of the top, front and right side of the liquid pump;

FIG. 2 is a front elevation view of the liquid pump;

FIG. 3 is a right side elevation view of the liquid pump;

FIG. 4 is a rear elevation view of the liquid pump;

FIG. 5 is a left side elevation view of the liquid pump;

FIG. 6 is a top plan view of the liquid pump; and,

FIG. 7 is a bottom view looking upwardly at the liquid pump from below.

Any broken line illustration of environmental structure in the drawings is for illustrative purposes only, and forms no part of the claimed design.

The broken lines are included for the purpose of illustrating portions of the liquid pump that form no part of the claimed design. 

CLAIM The ornamental design for a liquid pump, as shown and described. 